<?php

/*
	Question2Answer (c) Gideon Greenspan

	http://www.question2answer.org/

	
	File: qa-include/qa-page-user-wall.php
	Version: See define()s at top of qa-include/qa-base.php
	Description: Controller for user page showing all user wall posts


	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version 2
	of the License, or (at your option) any later version.
	
	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	More about this license: http://www.question2answer.org/license.php
*/

if (!defined('QA_VERSION')) { // don't allow this page to be requested directly from browser
    header('Location: ../');
    exit;
}

require_once QA_INCLUDE_DIR . 'qa-db-selects.php';
require_once QA_INCLUDE_DIR . 'qa-app-messages.php';


//	Check we're not using single-sign on integration, which doesn't allow walls

if (QA_FINAL_EXTERNAL_USERS)
    qa_fatal_error('User accounts are handled by external code');


//	$handle, $userhtml are already set by qa-page-user.php

$start = qa_get_start();


//	Find the questions for this user

list($useraccount, $usermessages) = qa_db_select_with_pending(
    qa_db_user_account_selectspec($handle, false),
    qa_db_recent_messages_selectspec(null, null, $handle, false, qa_opt_if_loaded('page_size_wall'), $start)
);

if (!is_array($useraccount)) // check the user exists
    return include QA_INCLUDE_DIR . 'qa-page-not-found.php';


//	Perform pagination

$pagesize = qa_opt('page_size_wall');
$count = $useraccount['wallposts'];
$loginuserid = qa_get_logged_in_userid();

$usermessages = array_slice($usermessages, 0, $pagesize);
$usermessages = qa_wall_posts_add_rules($usermessages, $start, $loginuserid);


//	Process deleting or adding a wall post (similar but not identical code to qq-page-user-profile.php)

$errors = array();

$wallposterrorhtml = qa_wall_error_html($loginuserid, $useraccount['userid'], $useraccount['flags']);

foreach ($usermessages as $message)
    if ($message['deleteable'] && qa_clicked('m' . $message['messageid'] . '_dodelete')) {
        if (!qa_check_form_security_code('wall-' . $useraccount['handle'], qa_post_text('code')))
            $errors['page'] = qa_lang_html('misc/form_security_again');

        else {
            qa_wall_delete_post($loginuserid, qa_get_logged_in_handle(), qa_cookie_get(), $message);
            qa_redirect(qa_request());
        }
    }

if (qa_clicked('dowallpost')) {
    $inmessage = qa_post_text('message');

    if (!strlen($inmessage))
        $errors['message'] = qa_lang('profile/post_wall_empty');

    elseif (!qa_check_form_security_code('wall-' . $useraccount['handle'], qa_post_text('code')))
        $errors['message'] = qa_lang_html('misc/form_security_again'); elseif (!$wallposterrorhtml) {
        qa_wall_add_post($loginuserid, qa_get_logged_in_handle(), qa_cookie_get(), $useraccount['userid'], $useraccount['handle'], $inmessage, '');
        qa_redirect(qa_request());
    }
}


//	Prepare content for theme

$qa_content = qa_content_prepare();

$qa_content['title'] = qa_lang_html_sub('profile/wall_for_x', $userhtml);
$qa_content['error'] = @$errors['page'];

$qa_content['script_rel'][] = 'qa-content/qa-user.js?' . QA_VERSION;

$qa_content['message_list'] = array(
    'tags' => 'id="wallmessages"',

    'form' => array(
        'tags' => 'name="wallpost" method="post" action="' . qa_self_html() . '"',
        'style' => 'tall',
        'hidden' => array(
            'qa_click' => '', // for simulating clicks in Javascript
        ),
    ),

    'messages' => array(),
);

if ($start == 0) { // only allow posting on first page
    if ($wallposterrorhtml)
        $qa_content['message_list']['error'] = $wallposterrorhtml; // an error that means we are not allowed to post

    else {
        $qa_content['message_list']['form']['fields'] = array(
            'message' => array(
                'tags' => 'name="message" id="message"',
                'value' => qa_html(@$inmessage, false),
                'rows' => 2,
                'error' => qa_html(@$errors['message']),
            ),
        );

        $qa_content['message_list']['form']['buttons'] = array(
            'post' => array(
                'tags' => 'name="dowallpost" onclick="return qa_submit_wall_post(this, false);"',
                'label' => qa_lang_html('profile/post_wall_button'),
            ),
        );

        $qa_content['message_list']['form']['hidden']['handle'] = qa_html($useraccount['handle']);
        $qa_content['message_list']['form']['hidden']['code'] = qa_get_form_security_code('wall-' . $useraccount['handle']);
    }
}

foreach ($usermessages as $message)
    $qa_content['message_list']['messages'][] = qa_wall_post_view($message);

$qa_content['page_links'] = qa_html_page_links(qa_request(), $start, $pagesize, $count, qa_opt('pages_prev_next'));


//	Sub menu for navigation in user pages

$qa_content['navigation']['sub'] = qa_user_sub_navigation($handle, 'wall');


return $qa_content;


/*
	Omit PHP closing tag to help avoid accidental output
*/